Installing a home EV charger is a significant investment—typically $500 to $2,500 depending on your setup—so choosing the right installer matters more than speed. Most homeowners don't have the electrical expertise to evaluate installers objectively, which is where a structured comparison process saves both money and headaches. This checklist helps you score installers fairly and identify the best fit for your specific situation.
Why Installer Quality Matters for EV Charging
A poorly installed charger can damage your home's electrical panel, create fire hazards, or void your vehicle warranty. Unlike hiring a plumber for a leaky faucet, EV charger installation requires coordination between your home's electrical capacity, utility requirements, and charger specifications. An experienced installer identifies obstacles early—like whether you need a panel upgrade (adding $1,000–$3,000) or a permit delay (typically 2–4 weeks in urban areas).
Credentials & Licensing Checklist
Start here. Your installer should have:
- Active electrical license in your state (verify on your state's licensing board website—non-negotiable)
- EV charger certification from a manufacturer like Tesla, ChargePoint, or Wallbox
- Insurance and bonding covering installation work
- References from chargers installed in the last 12 months (call at least two)
Don't hire someone who's "electrically qualified" but not formally licensed. A $200 licensing shortcut can cost thousands in liability issues later.
Site Assessment & Planning
A reputable installer schedules a no-cost or low-cost site visit (usually 30–45 minutes) to evaluate:
- Distance from your electrical panel to the desired charger location
- Your home's current amperage capacity (typical homes: 100, 150, or 200 amps)
- Whether your panel has available breaker space
- Local permit requirements and utility approval timelines
If an installer quotes you without visiting your home, they're guessing. Get at least three assessments. Expect variance in quotes—some installers find panel upgrades necessary while others don't—but the assessment process itself should be thorough.
Timeline & Transparency
Request a written timeline that includes:
- Permit application: typically 5–15 business days
- Inspection scheduling: 7–14 days after permit approval
- Installation day: usually 4–8 hours
- Final inspection: same day or next business day
Ask which party handles utility coordination (some utilities require advance notice). Reputable installers build 2–3 weeks into their estimate; anyone promising installation in 3 days is cutting corners on permits.
Price Comparison Framework
Get itemized quotes. Don't compare flat rates—compare:
- Charger unit cost (Level 2 chargers: $400–$1,200 depending on brand and amperage)
- Installation labor (typically $400–$1,000 for standard setups)
- Electrical upgrades if needed (panel upgrade, new circuit, conduit work)
- Permits and inspection fees ($50–$300 depending on location)
- Warranty on installation (most offer 2–5 years)
A $1,500 quote that includes permits, inspection, and 5-year warranty beats a $1,200 quote that doesn't. Mercoly helps you compare EV charger installers side by side, showing exactly what's included with each quote.
Customer Service Red Flags
Avoid installers who:
- Won't provide a written, itemized quote before work begins
- Can't clearly explain whether your home needs a panel upgrade
- Pressure you to decide on the same day as the assessment
- Don't mention local permit or utility requirements
- Have no verifiable online reviews or references
Good installers answer technical questions patiently. If an installer dismisses your questions about electrical capacity or warranties, move on.
Scoring Your Top Candidates
Rate each installer on a simple scale:
| Factor | Points | |--------|--------| | Licensed & certified | 25 | | Professional assessment conducted | 20 | | Clear, itemized pricing | 20 | | Reasonable timeline (2–3 weeks) | 15 | | Strong references | 15 | | Total | 95 |
Aim for installers scoring 80+. Anyone below 70 probably isn't worth the risk savings.
Frequently Asked Questions
Q: Does my electrical panel need an upgrade before installing an EV charger? Not always—it depends on your home's total amperage and existing loads. An installer's assessment determines this, but roughly 30–40% of homes need some electrical work. Budget accordingly.
Q: What's the difference between Level 1 and Level 2 charger installation? Level 1 uses a standard 120V outlet (no installation needed), while Level 2 requires a 240V circuit and professional hardwiring. Level 2 is the standard recommendation for home charging and costs $500–$2,500 installed.
Q: Can I install an EV charger myself? Not legally—most jurisdictions require a licensed electrician and permit. DIY installation voids warranties, creates liability, and typically fails inspection.
Ready to compare installers? Get vetted quotes from trusted EV charger installation providers in your area.